Andy and Terry are once again inviting readers to come hang out with them in their astonishing 39-story treehouse (it used to be 13 stories, then 26 stories, but they keep expanding). And this year they will have even more time to jump on the world's highest trampoline, toast marshmallows in an active volcano, swim in the chocolate waterfall, pet baby dinosaurs, and go head-to-trunk with the Trunkinator, since Terry has created the greatest invention that he--or anyone else--has ever invented . . . a Once-upon-a-time machine that will write and illustrate their entire book for them ...

Andy and Terry live in a 52-Story treehouse. (It used to be a 39-story treehouse, but they keep expanding.) It has a chainsaw-juggling level, a make-your-own-pizza parlor, a rocket-powered carrot-launcher, a life-size snakes and ladders game, a remembering booth, a Ninja Snail Training Academy and a high-tech detective agency, with all the latest high-tech detective technology, including the Disguise-o-Matic 5000

Something that is sure to come in handy as they try to solve the mystery of: What happened to Mr. Big Nose? After all, it's hard to turn in your next book when your...

Andy and Terry are once again inviting readers to come hang out with them in their astonishing 39-story treehouse (it used to be 13 stories, then 26 stories, but they keep expanding). And this year they will have even more time to jump on the world's highest trampoline, toast marshmallows in an active volcano, swim in the chocolate waterfall, pet baby dinosaurs, and go head-to-trunk with the Trunkinator, since Terry has created the greatest invention that he--or anyone else--has ever invented . . . a Once-upon-a-time machine that will write and illustrate their entire book for them ...